KR20140006669A - Near field communication device for indoor positioning and indoor positioning system using same - Google Patents

Abstract

The present invention relates to a local area communication device for indoor positioning and an indoor positioning system using the same. The embodiment according to the present invention provides the local area communication device for indoor positioning comprising a power unit which is realized in the plug type and is directly connected to consent of a commercial power to generate power in which an alternating current power provided from the consent is converted to a direct current power; a wireless signal generation unit for generating a wireless signal for indoor positioning using the power and providing a terminal with the wireless signal and transmission environment information of the wireless signal using a transceiving antenna; and a wireless signal control unit for controlling the wireless signal based on the transmission environment information and re-transmitting the controlled wireless signal to the wireless signal generation unit, and the indoor positioning system using the same. [Reference numerals] (112) AC-DC conversion unit; (114) DC-DC conversion unit; (116) Battery; (118) Power control unit; (120) Power switch; (122) Wireless signal generation unit; (124) Wireless signal control unit

Description

Near Field Communication Device for Indoor Positioning and Indoor Positioning System Using Same

The present embodiment relates to a near field communication device for indoor positioning and an indoor positioning system using the same. More specifically, a short-range communication device for indoor positioning that generates a wireless signal for indoor positioning is manufactured and applied to the indoor positioning system, based on the radio wave environment information included in the generated radio signal and the location information stored in the positioning device. By calculating the estimated position value of the terminal, it is possible to easily install the wireless network equipment regardless of the characteristics of the indoor location or the environment where the indoor positioning service should be provided by providing the indoor positioning short distance communication device with a plug type that can be installed with only 220V power supply. The present invention relates to a near field communication device for indoor positioning and an indoor positioning system using the same.

The contents described in this section merely provide background information on the present embodiment and do not constitute the prior art.

Among various multimedia communication services, LBS (Location-Based Service), which provides services using location and geographic information, is gaining great attention due to its wide usability and convenience. The location measurement technology for providing location-based services uses a network-based method to identify the location in software using a radio wave environment of a relay device to measure the location of the terminal and a GPS (Global Positioning System) installed in the terminal. It is classified into a handset based method using a receiver and a hybrid method in which these two methods are mixed.

Among these methods, network-based positioning technology is increasingly used in GPS shadow areas such as indoors and underground buildings. However, indoors where indoor positioning services are to be provided are limited in the wireless network that can be installed and constructed according to the characteristics or environment of the region and there are many restrictions. In addition, in the case of a wireless network device that generates Wi-Fi, Zigbee, and UWB, there is a difficulty in providing indoor positioning service due to frequency interference and collision problems.

In this embodiment, a short-range communication device for indoor positioning that generates a radio signal for indoor positioning is produced and applied to the indoor positioning system, based on the radio wave environment information included in the generated radio signal and the location information stored in the positioning device. Calculate the estimated location value of the terminal, and easily install the wireless network equipment regardless of the indoor characteristics or environment where the indoor positioning service should be provided by providing a plug-in type that can be easily installed with a 220V power supply for indoor positioning. The main purpose is to.

The present embodiment, the power supply unit is implemented in a plug type is directly connected to the outlet of the commercial power source, generating power converted from the AC power supplied from the outlet to DC power; A wireless signal generator for generating a radio signal for indoor positioning using the power and providing the generated radio signal and radio wave environment information of the radio signal to a terminal using a transmission / reception antenna; And a wireless signal controller for controlling the radio signal based on the radio wave environment information and retransmitting the controlled radio signal to the radio signal generator.

In addition, according to another aspect of the present embodiment, in the indoor positioning method using a short-range communication device for indoor positioning implemented in a plug type to receive power from the outside, a short distance for indoor positioning implemented in a plug type to receive power from the outside In the indoor positioning method using a communication device, generating the power by converting the AC power supplied from the outlet connected in the indoor location short-range communication device to the DC power, and using the power to boot the indoor location short-range communication device Process of doing; Generating a radio signal for indoor positioning from the indoor short range communication device; Providing a wireless signal to the terminal for indoor positioning; Receiving a request for indoor positioning from a positioning device and an external device in the terminal; Receiving the radio wave environment information included in the radio signal from the terminal by the positioning device, and checking the position information previously stored in the positioning device based on the received radio wave environment information to calculate the position value of the terminal; Provided is an indoor positioning method using a near field communication device for indoor positioning, including.

As described above, according to the present embodiment, an indoor positioning short-range communication device for generating indoor positioning-dedicated radio signals is manufactured, and applied to an indoor positioning system to radio wave environment information and positioning device included in the generated radio signal. Calculate the estimated location value of the terminal based on the stored location information, and provide the local positioning short distance communication device with a plug type that can be easily installed with only 220V power supply. It is effective to easily build wireless network facilities.

1 is a block diagram schematically showing the structure of an indoor positioning short-range communication device according to the present embodiment;
2 is a view showing an indoor positioning system using a near field communication device for indoor positioning according to the present embodiment;
3 is a flowchart illustrating a method of generating a radio signal using the indoor location short-range communication device according to the present embodiment and positioning a terminal based on the generated radio signal;
4 is a view showing a local positioning short-range communication device actually manufactured in this embodiment.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In addition, in describing the component of this invention, terms, such as 1st, 2nd, A, B, (a), (b), can be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected to or connected to the other component, It should be understood that an element may be "connected," "coupled," or "connected."

1 is a block diagram schematically showing the structure of an indoor positioning short-range communication device 100 according to the present embodiment.

In general, a local area communication device is a wireless network device (AP) for relaying wireless data communication, and generates wireless signals such as Zigbee, Ultra Wide Band (UWB), and Wi-Fi (WiFi). It refers to a device that can transmit and receive data. In addition, the local area communication device may be connected to a plurality of terminals at the same time, it is also possible to perform intra-area communication (LAN) by sharing multiple lines between the terminals in a general network environment.

The structure of the indoor location short-range communication device 100 according to the present embodiment includes a power supply unit including an AC-DC converter 112, a DC-DC converter 114, a battery 116, and a power controller 118 ( 110, a power switch 120, a wireless signal generator 122, and a wireless signal controller 124.

The power supply unit 110 receives commercial power from the outside and stores power for operating the indoor location short-range communication device 100. That is, the power supply unit 110 converts the AC power supplied from the outside through the AC / DC converter 112 to a DC power, and boosts or lowers the DC voltage generated due to the DC power through the DC / DC converter 114. Generates power down.

In addition, the power supply unit 110 is a battery 116 for storing the generated power, the power control unit 118 for preventing and controlling the overcharge of the power stored in the battery 116 to provide to the local area short-range communication device 100, the ON It further includes an LED light (not shown) and a remote control beeper (not shown) to be off to indicate a booting state of the indoor location short-range communication device 100.

On the other hand, the power supply unit 110 is provided in a plug type is directly connected to the outlet of the commercial power source to receive AC power, through which there is only 220V power without restriction on the indoor positioning site environment, it can be easily installed by the plug-in method.

The power switch 120 is a device for controlling the on-off of the indoor location short-range communication device 100 that operates through the power provided from the power supply unit 110, the indoor location short-range communication device by turning on and off the switch Provide and power to 100.

The wireless signal generator 122 generates a radio signal for indoor positioning using the power generated by the power supply unit 110, and provides the generated radio signal and radio wave environment information of the radio signal to a terminal using a transmission / reception antenna. As a result, the wireless signal generated by the wireless signal generator 122 is a signal based on the Bluetooth standard.

Bluetooth wireless signal is a communication protocol that can transmit and receive data at high speed by using a radio frequency without a physical cable for communication of various electromagnetic periods. In addition, various terminals can be wirelessly connected at 1 Mbps, and radio waves are transmitted and received by a very fast frequency hopping spread spectrum technology that changes 79 channels per second by setting 79 channels with a bandwidth of 1 MHz in the 2.4 GHz band. The power consumption is very low. In other words, the Bluetooth radio signal uses fast recognition and frequency hopping to avoid interference with other signals, and it is possible to send and receive data stably using fast and short packets compared to other systems operating in the same frequency band. It is a signal.

In addition, the wireless signal generator 122 generates a Bluetooth wireless signal, and solves the problem of frequency interference and collision occurring in the wireless signal of some or all of the Wi-Fi, ZigBee, UWB provided from the pre-installed wireless network device is fast It can provide accurate indoor positioning service.

In addition, the wireless signal generator 122 generates a radio signal, and collects radio wave environment information of some or all of identification information, SSID information, signal strength information, and signal transmission time information of the generated radio signal, and generates the radio signal. Included in the signal provided to the terminal.

Meanwhile, in the present invention, although the Bluetooth radio signal is produced from the radio signal generator 122, the present invention is not limited thereto, and a plurality of radio signals may be generated.

The radio signal controller 124 controls the radio signal generated based on the radio wave environment information, and retransmits the controlled radio signal to the radio signal generator 122.

That is, the radio signal controller 124 is a frequency of the radio signal generated from the radio signal generator 122 based on the radio wave environment information of some or all of the radio signal identification information, SSID information, signal strength information and signal transmission time information The band is determined, and the signal generation period of the radio signal is controlled.

In addition, the radio signal controller 124 controls to maintain the coverage of the preset indoor minimum distance when the radio signal occurs in the room where the positioning service is performed. In this case, the coverage of the preset indoor minimum distance is set to 10M, but is not necessarily limited thereto.

In addition, when the radio signal is generated outdoors, the radio signal controller 124 controls to maintain the coverage of the preset outdoor minimum distance. In this case, the coverage of the preset outdoor minimum distance is generally set to 100M, but is not necessarily limited thereto.

The power unit 110, the power switch 120, the wireless signal generator 122, and the wireless signal controller 124 of the indoor location short-range communication device 100 are integrally formed, and a commercial 220V power plug is implemented under the integrated unit. AC power can be provided.

The local positioning short-range communication device 100 according to the present embodiment includes a power supply unit 110, a power switch 120, a wireless signal generator 122, and a wireless signal controller 124. While the switch 120, the wireless signal generator 122, and the wireless signal controller 124 have an integrated structure, the integrated lower portion of the switch 220V power plug is implemented to receive AC power. As merely illustrative of the technical spirit of an embodiment, those skilled in the art to which an embodiment of the present invention belongs will be included in the wireless signal relay case without departing from the essential characteristics of the embodiment of the present invention. Various modifications and variations to the components to be applied will be applicable.

2 is a diagram illustrating an indoor positioning system using a near field communication device for indoor positioning according to the present embodiment.

The indoor positioning system using the indoor positioning short range communication device according to the present embodiment includes an indoor positioning short range communication device 100, a terminal 200, and a positioning device 210.

The indoor location short-range communication device 100 generates a radio signal including radio wave environment information for indoor location, and is implemented as a plug type to receive power from the outside.

The indoor location short-range communication device 100 generates a wireless signal based on the Bluetooth standard as described in FIG. 1, and propagates some or all of the identification information, SSID information, signal strength information, and signal transmission time information of the generated wireless signal. Collects the environmental information, including the information in the generated radio signal to provide to the terminal 200.

The terminal 200 refers to a terminal capable of transmitting and receiving various data using a communication intermediary device including an AP according to a user's key manipulation, and may be a tablet PC, a laptop, a personal computer (PC: Personal). Computer, a smart phone, a personal digital assistant (PDA) and a mobile communication terminal (Mobile Communication Terminal) may be any one. The terminal 200 is a terminal that performs voice or data communication using the AP and the communication network, a memory for storing a program or protocol for communicating with an external device via the AP and the communication network, and executes and operates the corresponding program. Means a terminal provided with a microprocessor for the purpose. That is, the terminal 200 may be any terminal as long as communication is possible using an AP and a communication network. Meanwhile, in the present embodiment, the terminal 200 may use wireless communication such as Zigbee, Bluetooth, Wi-Fi, and UWB to connect with the indoor location short-range communication device 100.

The terminal 200 according to the present embodiment is an object of indoor positioning, transmits and receives a radio signal generated by the indoor location short-range communication device 100, and stores radio wave environment information included in the radio signal in the terminal 200. Update Subsequently, when information on indoor positioning is requested from the positioning device 210 and the external device, the stored radio wave environment information is provided to the positioning device 210 and the external device.

On the other hand, in Figure 2 is shown that one terminal 200 is located indoors, this is only an illustration for illustrating an example of the present invention is not limited to this, there are a plurality of terminals 200 for indoor positioning The local area communication apparatus 100 may transmit and receive a wireless signal.

The positioning device 210 is interlocked with some or all of the indoor positioning short distance communication device 100 and the terminal 200 through a wired or wireless communication network, and transmits the location information of the indoor positioning short distance communication device 100 to the database 212. When there is a request for indoor positioning from an external device, the terminal 200 calculates a location value of the terminal 200 based on the radio wave environment information received from the terminal 200 and the stored location information.

The database 212 refers to a general data structure implemented in a storage space (hard disk or memory) of a computer system by using a database management program (DBMS). The database 212 is used to retrieve (extract) data, delete data, edit data, and add data. It is a data storage type that can be freely performed. It is a relational database management system (RDBMS) such as Oracle, Infomix, Sybase, DB2, Gemston, Orion. Object-Oriented Database Management System (OODBMS) such as, O2, and XML Native Database such as Excelon, Tamino, Sekaiju, etc. It can be implemented and has the appropriate fields or elements to achieve its function.

In the database 212 according to the present embodiment, the location information including some or all of the X and Y coordinates of the room in which the indoor location local area communication device 100 is installed is stored in advance. The radio wave environment information of some or all of the identification information and SSID information is stored, and when the positioning device 210 is requested to locate the terminal 200, the stored information is provided.

On the other hand, the database 212 checks the data stored in the database 212 in real time and periodically, and when the indoor location short-range communication device 100 is moved and added, pre-stored indoor location short-range communication device Add and change the location information of (100).

3 is a flowchart illustrating a method of generating a Bluetooth wireless signal using the indoor location short-range communication device 100 according to the present embodiment and positioning a position of the terminal 200 based on the generated Bluetooth wireless signal. .

As shown in FIG. 3, a process of generating a Bluetooth wireless signal using the indoor location short-range communication device 100 and positioning a location of the terminal 200 based on the generated Bluetooth wireless signal is performed first. The AC power supplied from the outlet through the AC / DC converter 112 of 100 converts to DC power, and the DC voltage generated by the DC power is boosted or stepped down through the DC / DC converter 114. Generates power for operating the local area short-range communication device 100, and starts the process of booting the indoor local area short-range communication device 100 through this (S300).

The radio signal generator 122 generates a radio signal based on a Bluetooth standard for indoor positioning using the generated power, and propagates an environment such as identification information, SSID information, signal strength information, and signal transmission time information of the generated radio signal. Information is collected (S310).

 The radio signal controller 124 determines the frequency band of the Bluetooth radio signal based on radio wave environment information such as identification information, SSID information, signal strength information, and signal transmission time information of the Bluetooth radio signal generated from the radio signal generator 122. And, the signal generation period of the Bluetooth radio signal is controlled. Thereafter, the indoor location short-range communication device 100 provides a signal including the radio wave environment information to the controlled Bluetooth wireless signal to the terminal 200 (S320).

The terminal 200 receives a Bluetooth wireless signal including radio wave environment information and checks whether a request for indoor positioning is performed from the positioning device 210 and the external device (S330).

When the terminal 200 receives a request for indoor positioning from the positioning device 210 and an external device, the positioning device 210 receives radio wave environment information from the terminal 200 through a wired or wireless communication network, and receives the received radio wave environment information. Location information such as X and Y coordinates of the room in which the indoor location short-range communication device 100 pre-stored in the database 212 and identification information and SSID information of the indoor location short-range communication device 100 are installed. Using the radio wave environment information of the position value of the terminal 200 is calculated. At this time, the database 212 checks the data stored in the database 212 in real time and periodically, and when the indoor location short-range communication device 100 is moved and added, pre-stored indoor location short-range communication device The location information of 100 is added and changed (S340).

3, steps S300 to S340 are sequentially executed. However, this is merely an example of the technical idea of an embodiment of the present invention, and it is to be understood that the technical knowledge of the technical field to which the embodiment of the present invention belongs, Those skilled in the art will appreciate that various modifications and adaptations may be made to those skilled in the art without departing from the essential characteristics of one embodiment of the present invention or by executing one or more of steps S300 through S340 in parallel, And therefore, Fig. 3 is not limited to the time-series order.

4 is a view showing the indoor location short-range communication device 100 actually manufactured in this embodiment.

As shown in (a) and (b) of FIG. 4, the indoor short-range communication device 100 actually manufactured includes the power unit 110, the power switch 120, and the wireless signal generator 122 shown in FIG. 1. And an integrated structure including the wireless signal controller 124 therein, while the integrated lower portion of the integrated 220V power plug is implemented to receive AC power. In addition, it is possible to check whether the booting state of the indoor location short-range communication device 100 through the LED.

The actual short-range communication device 100 for indoor positioning according to the present invention can be easily installed without restriction on the characteristics or environment of the region where indoor positioning services such as the height of the ceiling or power line construction can be provided if only 220V power is provided through the plug. It is possible to install and generate a Bluetooth radio signal to solve the frequency interference and collision problem caused by some or all of the radio signals of Wi-Fi, ZigBee, and UWB provided from pre-installed wireless network devices. Can provide services.

The foregoing description is merely illustrative of the technical idea of the present embodiment, and various modifications and changes may be made to those skilled in the art without departing from the essential characteristics of the embodiments. Therefore, the present embodiments are to be construed as illustrative rather than restrictive, and the scope of the technical idea of the present embodiment is not limited by these embodiments. The scope of protection of the present embodiment should be construed according to the following claims, and all technical ideas within the scope of equivalents thereof should be construed as being included in the scope of the present invention.

100: short-range communication device for indoor positioning 110: power supply
112: AC-DC converter 114: DC-DC converter
116: battery 118: power control unit
120: power switch 122: wireless signal generator
124: wireless signal controller 200: terminal
210: positioning device 212: database

Claims (10)

A power supply unit which is implemented in a plug type and directly connected to an outlet of commercial power, and generates electric power converted from an AC power supplied from the outlet into a DC power source;
A wireless signal generator for generating a radio signal for indoor positioning using the power and providing the generated radio signal and radio wave environment information of the radio signal to a terminal using a transmission / reception antenna; And
A radio signal controller which controls the radio signal based on the radio wave environment information and retransmits the controlled radio signal to the radio signal generator;
Indoor location short-range communication device comprising a. The method of claim 1,
The wireless signal generator generates a signal based on a Bluetooth standard as the wireless signal, thereby providing a part of Wi-Fi, Zigbee, and Ultra Wideband (UWB) provided from an already installed wireless network device (AP). Or Indoor positioning short-range communication device characterized in that to solve the problem of frequency interference and collision occurring in all radio signals. 3. The method of claim 2,
The wireless signal generator generates the wireless signal and includes the radio environment information of some or all of the identification information, SSID information, signal strength information, and signal transmission time information of the wireless signal in the wireless signal. Indoor short-range communication device, characterized in that for transmitting. The method of claim 1,
And the wireless signal controller determines a frequency band of the wireless signal generated from the wireless signal generator based on the radio wave environment information, and controls a signal generation period of the wireless signal. The method of claim 1,
The power supply unit stores a battery; And
And a power control unit for controlling the power stored in the battery. The method of claim 1,
The short-range communication device for indoor positioning, characterized in that the power unit, the wireless signal generator and the wireless signal controller is integral. In the indoor positioning method using a short-range communication device for indoor positioning implemented in a plug type to receive power from the outside,
Generating power by converting AC power provided from an outlet connected by the indoor location short-range communication device into DC power, and booting the indoor location short-range communication device using the power;
Generating a radio signal for indoor positioning from the indoor short range communication device;
Providing a wireless signal to the terminal for indoor positioning;
Receiving a request for indoor positioning from a positioning device and an external device in the terminal;
Receiving, by the positioning device, radio wave environment information included in the radio signal from the terminal, and calculating position values of the terminal by checking position information previously stored in the positioning device based on the received radio wave environment information;
Indoor positioning method using a near field communication device for indoor positioning, comprising a. 8. The method of claim 7,
The generating of the wireless signal may generate a signal based on an indoor positioning dedicated Bluetooth standard as the wireless signal, and may include some or all of identification information, SSID information, signal strength information, and signal transmission time information of the Bluetooth wireless signal. Indoor positioning method using a short-range communication device for indoor positioning, characterized in that for collecting the radio wave environment information. 8. The method of claim 7,
The providing of the radio signal for indoor positioning to the terminal may include controlling the generated radio signal based on the radio wave environment information and providing the terminal with a signal including the radio wave environment information in the controlled radio signal. Indoor positioning method using a local positioning local area communication device characterized in that. 8. The method of claim 7,
The pre-stored location information in the positioning device includes information of some or all of the X and Y coordinates of the room in which the indoor short-range communication device is installed, and the positioning of the terminal based on the radio wave environment information and the location information. Indoor positioning method using a near field communication device for indoor positioning, characterized in that grasp information.

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